Heating-drum



No. s2|,||5. Patented Mar. [4, I899.

N. MAINZ & a. J. ZELLER.

HEATING DRUM.

(Application filed Apt. 9, 1898.)

(No Model.)

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UNITED STATES PATE T FFICE.

NICHOLAS MAINZ AND GEORGE J. ZELLER, OF WASHINGTON- HEIGHTS, ILLINOIS.

HEATING-DRUM.

. SPECIFICATION forming part of Letters Patent No. 621,115, dated March14, 1899.

Application filed April 9, 1898. Serial No. 677,022. (No model.)

To all whom it may concern:

Be it known that we, NICHOLAS MAINZ and GEORGE J. ZELLER, citizens ofthe United States, residing at Washington Heights, in the county of Cookand State of Illinois,-have invented certain new and useful Improvementsin Heating-Drums; and we do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to heating-drums; and it consists in the novelconstruction and combination of the parts hereinafter fully describedand claimed.

In the drawings, Figure 1 is a vertical section through theheating-drum. Fig. '2 is a sectional plan view taken on the line w a: inFig. 1.

A is the outer casing or shell of the heating-drum.

B is the bottom plate, and C is the top plate. I

The top and bottom plates are secured to the shell in any approvedmanner. The shell is shown of circular form; but it may be of any otherapproved form, such as rectangular or oval, and it and the top andbottom plates may be made of wrought iron, cast-iron, or any otherapproved material which is a good conductor of heat.

D are vertical heating-tubes which pass through the chamber of theheating-drum and have their end portions secured to the top and bottomplates in any approved manner.

E is an inlet-pipe for the products of combustion or hot air from anyapproved form of heater, radiator, or furnace. The inletpipe isconnected to the bottom plate in any approved manner, said bottom platebeing preferably provided with a collar efor the inlet-pipe to engagewith.

F is an outlet-pipe connected to the top plate in any approved manner,said top plate being preferably provided with a collar f for theoutlet-pipe to engage with.

F is a removable portion of the outlet-pipe or extension-pipe, whichdepends within the heating-drum between the heating-tubes and which hasits lower openend arranged over and in proximity to the open end of theinlet The pipe F is arranged inside the collar f 5 5 and is providedwith a projecting bead f for supporting it, and the outlet-pipe F isslipped over the upper end portion of the pipe F and the collar f. Thedistance between the inlet and outlet pipes can be adjusted, if desired,

either by sliding the pipe F upward inside the pipe F or by removing thepipe F and inserting a similar pipe of a different length in place ofit.

G is a partition which is connected to the bottom plate B on one side ofthe inlet-pipe. This partition extends between the inlet and outletpipes diagonally and thence upward, leaving an opening or space g in theupper part of the heating-drum above the bottom of the outlet-pipe. Thepartition G is provided with an opening g between the mouths of theinlet and outlet-pipes, andH is a damper for closing the said opening.Any approved form of damper may be used.

The partition G has a vertical side portion 2 on one side of the pipe F,a front portion 3, and aback portion 4. The front and back portions areeach arranged at an obtuse angle to the side portion 2, and they areprovided with flanges 5, by which they are connected to the shell A onthe-opposite side of the pipe F from the side portion 2. The in clinedportion 6 of the partition is attached to the bottom edges of the parts2, 3, and 4, and it is provided with a flange 7 at its lower part, bywhich it is attached. to the bottom plate B of the drum on the oppositeside of the inlet-pipe from the part 2.

The damper H is preferably a slidable plate, and h are guides for thedamper-plate. A rod h is provided as a means for sliding thedamper-plate back and forth and is carried through a hole in the shell.The partition can be made in several parts, if desired, and of anyapproved material or materials, and it is preferably shaped andconstructed so as to partially encircle the outlet-pipe and leave roomfor as many heating-tubes as possible. When the damper is closed, theheat passes into the upper part of the drum and over the top of thepartition, being brought in contact with all the tubes, and passesdownward and into the open end of the outlet-pipe. When the damper isopened, the heat in a great measure passes direct from the inlet-pipe tothe outlet-pipe and the heating effect of the drum is reduced. It willbe noticed that the draft through the heating-drum is never out off orobstructed.

\Vhat We claim is- In a heating-drum, the combination, with a casing, anin1et-pipc connected to its bottom plate, and an outlet-pipe connectedto its top plate and depending Within the casing over the inlet-pipe ofa partition comprising side, front, back and inclined portions, 2, 3, 4:and 6, said side portion being arranged on one side of the outlet-pipe,and the said front and back portions being arranged at an obtuse angleto it and connected to the casing on the other side of the inlet-pipe,and the said inclined portion having an opening g and extending from thebottom edges of the parts 2, 3 and 4 diagonally between the said inletand outlet pipes and having its lower part connected to the bottom plateof the said casing, a space g being left between the top of thepartition and the top plate of the said casing, and a damper forregulating the passage through the opening 9, substantially as setforth.

In testimony whereof we afiix our signatures in presence of twoWitnesses.

NICHOLAS MAINZ. GEORGE J. ZELLER. Vitnesses:

\VILLIAM ROACI-I, J OE STEPP.

